ls/vtec not making more hp?
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ls/vtec not making more hp?
hey guys so I have a 99 civic with a ls vtec, last year it was a bone stock motor with ebay header and yonaka 2.5 exhaust, it made 159hp. I wanted a bit more power so this spring I installed CTR cams , supertech dual valve springs, AEM cam gears and plm v2 header got a other tune this weekend and the most It made was 164hp? just wondering what went wrong because I thought it would of made at least 170hp
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